Profil bibliographique

K. K. He

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

11Publications signalées
0Citations signalées
0Affiliations récentes

Les domaines associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions ResearchBlack Holes and Theoretical PhysicsCold Atom Physics and Bose-Einstein Condensates

Les publications récentes

Accès ouvert 2025 preprint OpenAlex

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+(0)}$ into the Axial-vector Meson $\bar K_1(1270)$

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

Using $e^+e^-$ data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb$^{-1}$, we report the first measurement of the decay dynamics of the semileptonic decays $D^{+(0)}\to K^-π^+π^{0(-)} e^+ν_e$. The amplitude analysis …

0 citations arXiv (Cornell University)
Accès ouvert 2025 preprint OpenAlex

Precision measurement of the branching fraction for the decay $ψ(2S)\rightarrowτ^{+}τ^{-}$

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

Using $(2259.3 \pm 11.1)\times10^{6}$ $ψ(2S)$ events acquired with the BESIII detector, the branching fraction of $ψ(2S)\rightarrowτ^{+}τ^{-}$ is measured with improved precision to be $\mathcal{B}_{ψ(2S)\rightarrowτ^{+}τ^{-}}=(3.240~\pm~0.023~\pm~0.081)\times 10^{-3}$, where the first and second uncertainties are statistical and systematic, respectively, which is consistent with the world …

0 citations arXiv (Cornell University)
Accès ouvert 2023 preprint OpenAlex

Measurements of the branching fractions of the inclusive decays $D^{0}(D^{+})\to π^+π^+π^-X$

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

Using $e^+e^-$ annihilation data corresponding to an integrated luminosity of 2.93 fb$^{-1}$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we report the first measurements of the branching fractions of the inclusive decays $D^0\to π^+π^+π^-X$ and $D^+\to π^+π^+π^-X$, …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Measurement of branching fraction of $D^{*+}_s\to D^+_s π^0$ relative to $D^{*+}_s\to D^+_s γ$

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

Based on 7.33 fb$^{-1}$ of $e^+e^-$ collision data taken at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we measure the branching fraction of $D^{*+}_s\to D^+_sπ^0$ relative to that of $D^{*+}_s\to D^+_sγ$ to be $(6.16\pm 0.43\pm 0.19)\%$. The first …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Measurement of the absolute branching fraction of the inclusive decay $D_s^+\to π^+π^+π^- X$

BESIII Collaboration, М. Н. Ачасов, P. Adlarson, M. Albrecht et autres

Using an $e^+ e^-$ collision data sample with a total integrated luminosity of $3.19$ fb$^{-1}$ collected with the BESIII detector at a center-of-mass energy of 4.178 GeV, the branching fraction of the inclusive decay of the $D_s^+$ meson to final states including …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Evidence for $η_c$(2S)$\to\pipieta$ decay

BESIII Collaboration, M. Ablikim, М. Н. Ачасов, P. Adlarson et autres

The decay $η_c(2S)\to\pipieta$ is searched for through the radiative transition $ψ(3686) \toγη_c(2S)$ using 448 million $ψ$(3686) events accumulated at the BESIII detector. The first evidence of $η_c(2S)\toπ^+π^-η$ is found with a statistical significance of 3.5$σ$. The product of the branching fractions of …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Observation of the decay $ψ(3686) \to Σ^-\barΣ^+$ and measurement of its angular distribution

BESIII Collaboration, М. Н. Ачасов, P. Adlarson, M. Albrecht et autres

Using $(448.1\pm2.9)\times10^6$ $ ψ(3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $ψ(3686)\toΣ^-\barΣ^+$ is observed for the first time with a branching fraction of $(2.82\pm0.04_{\rm stat.}\pm0.08_{\rm syst.})\times10^{-4}$, and the angular parameter $α_{ Σ^-}$ is measured to be $0.96\pm0.09_{\rm …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Measurement of the Branching Fraction of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+}\toΛK^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres

We report a branching fraction measurement of the singly Cabibbo-suppressed decay $Λ_{c}^{+}\toΛK^{+}$ using a data sample collected with the BESIII detector at the BEPCII storage ring. The data span center-of-mass energies from 4.599 to 4.950 GeV and correspond to an integrated luminosity …

0 citations arXiv (Cornell University)
Accès ouvert 2022 preprint OpenAlex

Amplitude analysis and branching fraction measurement of the decay \boldmath $D_{s}^{+} \to K^+π^{+}π^{-}π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson et autres

The singly Cabibbo-suppressed decay $D_{s}^{+} \to K^+π^{+}π^{-}π^{0}$ is observed, using a data set corresponding to an integrated luminosity of 6.32 $\rm fb^{-1}$ recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV. The first amplitude analysis of $D_{s}^{+} …

0 citations arXiv (Cornell University)
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